WO1997025586A1 - Assemblage d'une douille combustible et de son culot - Google Patents

Assemblage d'une douille combustible et de son culot Download PDF

Info

Publication number
WO1997025586A1
WO1997025586A1 PCT/US1996/017754 US9617754W WO9725586A1 WO 1997025586 A1 WO1997025586 A1 WO 1997025586A1 US 9617754 W US9617754 W US 9617754W WO 9725586 A1 WO9725586 A1 WO 9725586A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
combustible cartridge
cartridge case
seal assembly
case base
Prior art date
Application number
PCT/US1996/017754
Other languages
English (en)
Inventor
John J. Dineen
Andrea L. Zivari-Giannoglou
Original Assignee
Dineen John J
Zivari Giannoglou Andrea L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dineen John J, Zivari Giannoglou Andrea L filed Critical Dineen John J
Priority to AU76698/96A priority Critical patent/AU7669896A/en
Publication of WO1997025586A1 publication Critical patent/WO1997025586A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases
    • F42B5/181—Caseless ammunition; Cartridges having combustible cases consisting of a combustible casing wall and a metal base; Connectors therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/18—Caseless ammunition; Cartridges having combustible cases

Definitions

  • This invention relates to the problems related to the handling of combustible case cartridges and the chambering and dechambering of such cartridges wherein the case base partially separates or completely separates from the combustible cartridge case, creating a hazard.
  • This invention provides a new method of attaching a case base and seal assembly ( Figure 3) to the combustible cartridge case.
  • Figure 1 is a schematic of typical 120mm tank ammunition.
  • Figure IA is a rear view of the existing case base and seal assembly.
  • Figure IB is a detail of the current joint with the use of a retaining ring and spring disc whose location is identified in Figure 1.
  • Figure 2 is a schematic which defines the dome area of the existing combustible cartridge case.
  • Figure 2A is a rear view of the dome area of the combustible cartridge case.
  • Figure 3 is a cross sectional view of the case base identifying the detail area of the seal to be found at Figure 3A.
  • Figure 3A is a detail area A of the seal found attached to the case base.
  • Figure 3B is a view of the rear of the case base.
  • Figure 4 is a cross-sectional view of a case base and seal assembly mated to the exterior of the combustible cartridge case.
  • the seal is one monolithic piece which acts as a male portion of the joint. It is fitted into the female portion of the combustible cartridge case. The combustible cartridge case is snapped into the case base and seal assembly.
  • Figure 5 depicts the changed combustible cartridge case which is used as the male portion of the joint.
  • Figure 6A is the detail of the silicone rubber seal.
  • FIG 1 is the schematic of a typical 120mm tank round of ammunition.
  • Figures 2 and 3 depict the various elements of the prior art which are involved in the separation and dechambering problem.
  • the current joint between the case base and seal assembly ( Figure 3) with the combustible cartridge case 10 are shown in Figure 1.
  • Figure 3A shows the tear drop male connector 19 mated to the current seal 16.
  • Figure 4 shows the new case base and seal assembly ( Figure 3) mated to the combustible cartridge case 10 joint developed.
  • the detent 18 is part of the rubber seal of the case base and seal assembly 16 and is used to secure the side wall 15 of the combustible cartridge case 10.
  • Figure 4 further depicts a design wherein it is found to be rigid enough because the rubber detent 18 is between the metal "tear drop" 19 of the case base 11 and combustible cartridge case 10. Only a new mold is required to mold the rubber seal 16, rather than any machining of the case base 11.
  • Figure 5 depicts that the mating combustible cartridge case 10 only requires machining of the groove 18 as part of its regular production. Assembly of the joint as shown in Figure 6 requires only the pressing of the combustible cartridge case 10 into the case base 11 as shown in Figure 4.
  • Figure 5 depicts the grooved area 18 machined into the combustible cartridge case 10 at the time of manufacture of the said combustible cartridge case 10 which allows the rubber seal with its detent 16 to fit onto the very surface of the combustible cartridge case 10.
  • Figure 6 and Figure 6A show the design which enables the case base and seal assembly (Figure 3) and combustible cartridge case 10 to interface only at the joint area 21 described at Figure 6A. This makes removing the dome area 13 shown at Figure 2 of the combustible cartridge case 16 feasible, thus decreasing the likelihood of burning residue from the combustible cartridge case 10 when fired.
  • Burning residue is a great risk of 120mm tank ammunition because if burning residue exists in the gun while another cartridge 10 is chambered, the cartridge
  • the new joint 21 at Figures 6, 6A has proven to be 40% stronger than the old design shown in Figure 3A in pull tests. Furthermore, the new joint 21 has also passed an array of drop tests. Lastly, the new joint 21 shows that there is no pulling away of the case base
  • the changed combustible cartridge case 10 at Figure 5 is pressed into the base case and seal assembly at Figure 6 to yield the new case base to combustible cartridge case joint 21 as shown in Figures 4 and 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne un nouveau système d'assemblage utilisé pour des munitions à douille combustible, réduisant le risque d'une séparation entre la douille combustible et son culot pourvu d'un joint pendant une manipulation de routine et minimisant les problèmes associés à l'extraction de la cartouche de la chambre. Le système présenté comprend un joint (16) accouplé au culot (11) de la douille et pénétrant dans la partie extérieure de la douille combustible (10).
PCT/US1996/017754 1996-01-04 1996-11-04 Assemblage d'une douille combustible et de son culot WO1997025586A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU76698/96A AU7669896A (en) 1996-01-04 1996-11-04 Case base/combustible cartridge case joint

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1175096P 1996-01-04 1996-01-04
US60/011,750 1996-01-04

Publications (1)

Publication Number Publication Date
WO1997025586A1 true WO1997025586A1 (fr) 1997-07-17

Family

ID=21751821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/017754 WO1997025586A1 (fr) 1996-01-04 1996-11-04 Assemblage d'une douille combustible et de son culot

Country Status (2)

Country Link
AU (1) AU7669896A (fr)
WO (1) WO1997025586A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1431701A1 (fr) * 2002-12-18 2004-06-23 Giat Industries Munition sans douille et procédé de montage d'une telle munition

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR919583A (fr) * 1945-09-18 1947-03-12 Douille de cartouche
US3955506A (en) * 1973-01-26 1976-05-11 Rheinmetall G.M.B.H. Propulsive-charge case
DE2705235A1 (de) * 1977-02-08 1978-08-17 Dynamit Nobel Ag Leichte patrone
US4159678A (en) * 1976-09-16 1979-07-03 Rheinmetall G.M.B.H. Propellant charge casing
GB2044416A (en) * 1979-03-15 1980-10-15 Aai Corp Metal-plastic cartridge case and cartridge arrangement
DE3332676A1 (de) * 1983-09-10 1985-03-28 Rheinmetall GmbH, 4000 Düsseldorf Treibladungshuelse
US5048421A (en) * 1990-08-06 1991-09-17 Olin Corporation Combustible cartridge case base
US5155295A (en) * 1989-10-19 1992-10-13 Olin Corporation Cartridge assembly
US5444208A (en) * 1993-03-29 1995-08-22 Fmc Corporation Multiple source plasma generation and injection device
US5563365A (en) * 1993-08-09 1996-10-08 The United States Of America As Represented By The Secretary Of The Army Case base/combustible cartridge case joint

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR919583A (fr) * 1945-09-18 1947-03-12 Douille de cartouche
US3955506A (en) * 1973-01-26 1976-05-11 Rheinmetall G.M.B.H. Propulsive-charge case
US4159678A (en) * 1976-09-16 1979-07-03 Rheinmetall G.M.B.H. Propellant charge casing
DE2705235A1 (de) * 1977-02-08 1978-08-17 Dynamit Nobel Ag Leichte patrone
GB2044416A (en) * 1979-03-15 1980-10-15 Aai Corp Metal-plastic cartridge case and cartridge arrangement
DE3332676A1 (de) * 1983-09-10 1985-03-28 Rheinmetall GmbH, 4000 Düsseldorf Treibladungshuelse
US5155295A (en) * 1989-10-19 1992-10-13 Olin Corporation Cartridge assembly
US5048421A (en) * 1990-08-06 1991-09-17 Olin Corporation Combustible cartridge case base
US5444208A (en) * 1993-03-29 1995-08-22 Fmc Corporation Multiple source plasma generation and injection device
US5563365A (en) * 1993-08-09 1996-10-08 The United States Of America As Represented By The Secretary Of The Army Case base/combustible cartridge case joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1431701A1 (fr) * 2002-12-18 2004-06-23 Giat Industries Munition sans douille et procédé de montage d'une telle munition
FR2849179A1 (fr) * 2002-12-18 2004-06-25 Giat Ind Sa Munition sans douille et procede de montage d'une telle munition

Also Published As

Publication number Publication date
AU7669896A (en) 1997-08-01

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